Quantcast
Jump to content

Massimo Gunner 250 won't stay running


Bentley76

Recommended Posts

I am working on a ride for a friend of mine, it is a Gunner 250. Machine was parked last year because it wouldn't idle right. It would idle way up then back down to almost stalling so they parked it. His kid now wants to ride it again so we've gotten it out. First thing we did was drain old gas and re-fill. Changed filter and spark plug. It will start right up but immediately dies. Checked for fuel pressure it and it is good. You can spray starting fluid in fuel injection and it will do the same thing. Fires right up then dies. Anyone have a clue what this could be? I appreciate any help I can get! Thanks

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Similar Topics

    • By joeam
      I have a 2018 TW450E that runs in my yard and slow good just will not go down the road seems to be running out of fuel where should i start? I have replaced both fuel and air filter drained gas and tried a small auxiliary tank same issue i have ordered a new vacuum fuel pump to try next anyone in Texas that works on these?
    • By Nathon S.
      I have a Bennche 700 EFI Bighorn. I’ve recently been unable to get it to start. After a little troubleshooting I realized my fuel pump was not pumping fuel. This weekend I emptied the gas and replaced it with new. I replaced the fuel pump, fuel filter and fuel injector. I also replaced the battery, spark plug and made sure all my fuses and relays were good. I have confirmed that the float on the fuel pump is not obstructed. The UTV is about 12 years old and has less than 100 hours on it. It has not run in over a year.  Not sure whats going on?!? After doing a little reading I'm leaning towards it being an issue with the ECU or perhaps a faulty wire in the wiring harness. Anyone have any ideas on where to start looking or what I could be dealing with? Any help is appreciated, thanks in advance!
    • By Richard shepard
      I have a 2021 colman 400utv engine will start and idle, as soon as you hit throttle to move engine dies and will only start when you throttle it, let off throttle it dies, I replaced the injector and plug still the same, anyone have any other ideas
    • By Steve R
      after looking at the diagnostic procedures in this forum, I am finding my Gunner 250 does not have an engine warning light on the dash. i have tried to see if any other symbols flash, but nothing seems to project an error code. i have not engine spark. I do not get a start of the fuel pump. I have replaced the ignition coil, the ECU (MT05) and the voltage regulator. I could really use a diagram for the 250 model. i need a place to start checking the electrical system.
    • By Rusty Beavers
      I'm working on a Coleman UTV 400 that has a rough idle, owner has had it for about a year. When I say it has a rough idle, it doesn't have the continuous smooth running sound. At times you can hear it kinda skip, sputter, or like the RPM has fallen (RPM stay constant according to the gauge) It's not as bad as it was after I replaced the fuel filter and fuel injector (both are Chiki) not sure if that is a quality brand at this point. Checked the spark plug, it was a little foul, but not too bad. (Since the engine is still idling bad I'm going to replace that) Cleaned the throttle body making sure the carbon and soot has been removed, and the air-filter has been cleaned. New fuel is being used so it's not old or been standing. They did tell me that they were using non-ethanol fuel, not sure if that would be causing the issue. Next two things I can think of that maybe the issue is the O2 sensor or the valves need adjusting.
      Thoughts and suggestions? Thanks in advance.
×
×
  • Create New...